Question

The ratio of red beads to blue beads on a necklace is 4:7. If there are 16 red beads, how many blue ones are there?​

Answer 1

There are 28 beads

Explanation:

Total ratio:

`{ \sf{ (4 + 7) = 11}}`

let total beads be x:

`{ \sf{ (4)/(11) * x = 16 }} \\ \\ { \sf{x = (11 * 16)/(4) }} \\ x = 44 \: beads`

Blue beads:

`= 44 - 16 \\ = 28 \: \: beads`